I am from Mass, and I would check with your local inspection station where you get the sticker for your car. They will know the requirements. I believe it is the same in MA as in CA as Charlie pointed out. I have a Model A that gets inspected every year here and they never question seat belts because they are not original to the car. (Grandfathered). I do have seat belts in the A though. Would not be without them. I am not sure when they first came as standard equipment, but Ford offered seat belts and a deep dish steering wheel as a safety option somewhere around '56. Had a '53 Victoria in '59 and put my own seat belts in.